Package For Meidcal Device

Abstract

This invention provides a medical device container comprising thermoplastic materials wherein said container is transmissive over substantially all of the surface area of said container to greater than 30% of the radiation in the range of 240 to 280 nm which impinges upon said container, and wherein said container is impervious to microorganisms. The preferred medical device container houses a contact lens.

1 - 22 . (canceled) 
   
   
       23 . A method of housing a contact lens for sterilization by UV radiation comprising placing said contact lens in a container comprising a multilayered lidstock and a molded thermoplastic base, wherein said multilayered lidstock is transmissive to greater than 30% of the radiation in the range of 240 to 280 nm which impinges upon said multilayered lidstsock, wherein a first layer of said multilayered lidstock comprises biaxially oriented polypropylene, and a second layer of said multilayered lidstock comprises biaxially oriented polyamides, wherein said first layer is laminated to said second layer. 
   
   
       24 . The method of claim  1  wherein the multilayered lidstock of claim  1 , further comprising an adhesive layer between said first layer and said second layer wherein said adhesive layer comprises a material selected from the group consisting of vinyl chloride copolymers, vinyl chloride-vinyl acetate copolymers, polymerisable polyesters, vinylpyridine polymers, butadiene-acrylonitrile-methacrylic acid copolymers, phenol resins, acrylic resins, acrylic resins with phenol or acrylate polymers, urethane-modified acrylics, polyester-co-polyamides, polyisobutylenes, polyurethanes, ethylene-acrylic acid mixed polymers, and ethylene-vinyl acetate mixed polymers. 
   
   
       25 . The method of claim  4 , wherein said adhesive comprises a material selected from the group consisting of aliphatic polyesters and polymerisable polyesters. 
   
   
       26 . The method of container of claim  1 , wherein said multilayered lidstock is transmissive to greater than 40% of the radiation in the range of 240 to 280 nm which impinges upon said multilayered lidstock. 
   
   
       27 . The method of claim  1  wherein said first layer of the multilayered lidstock has a thickness from 5 to 100 microns, and said second layer has a thickness of 5 to 50 microns. 
   
   
       28 . The method of claim  1  wherein said multilayer lidstock contains less than 10% of members selected from the group consisting of bulk fillers, lubricants, heat stabilizers, clarifiers, nucleating agents, anti-microbial oxidants, UV-blockers, pigments and fillers added to provide UV stability. 
   
   
       29 . The method of claim  1  wherein said container is less than 10% of components containing members selected from the group consisting of aromatic elements, anti-blocking agents, glass, calcium carbonate, slip additives, stearates, and rubber anti-tack additives. 
   
   
       30 . The method of claim  1  wherein said molded thermoplastic base comprises polyolefin or cycloolefin. 
   
   
       31 . The method of claim  1  wherein said molded thermoplastic base comprises, polypropylene, polyethylene or a copolymer of polypropylene and polyethylene or a cycloolefin. 
   
   
       32 . The method of claim  1  wherein said molded thermoplastic base comprises, polypropylene. 
   
   
       33 . The method of claim  1  wherein said container is transmissive over substantially all of the surface area of said container to greater than 30% of the radiation in the range of 240 to 280 nm which impinges upon said container. 
   
   
       34 . The method of claim  1  wherein said container is transmissive over substantially all of the surface area of said container to greater than 40% of the radiation in the range of 240 to 280 nm which impinges upon said container. 
   
   
       35 . The method of claim  1  wherein said container is transmissive over substantially all of the surface area of said container to greater than 50% of the radiation in the range of 240 to 280 nm which impinges upon said container. 
   
   
       36 . The method of claim  1 , wherein said multilayered lidstock is transmissive to greater than 50% of the radiation in the range of 240 to 280 nm which impinges upon said multilayered lidstock.